Paleozoic Geodynamics and Architecture of the Southern Part of the Mongolian Altai Zone
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F22%3A00000094" target="_blank" >RIV/00025798:_____/22:00000094 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/22:10447100
Result on the web
<a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2022TC007498" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2022TC007498</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2022TC007498" target="_blank" >10.1029/2022TC007498</a>
Alternative languages
Result language
angličtina
Original language name
Paleozoic Geodynamics and Architecture of the Southern Part of the Mongolian Altai Zone
Original language description
The Mongolian Altai Zone of the Central Asian Orogenic Belt has been traditionally interpreted as a mosaic of Paleozoic magmatic arcs, back-arcs, and Precambrian continental terranes. In order to define its architecture and its tectonic evolution, three domains previously interpreted as terranes were investigated. The findings show that the Northern and Central domains are formed by a metamorphic sequence characterized by Barrovian S1 fabric transposed by recumbent folds and dominant sub-horizontal amphibolite facies S2 schistosity. The latter is associated with the intrusions of late Devonian syntectonic granite sheets and anatexis in the south. The Southern domain is formed by early Permian migmatites and anatectic granites separated from the metamorphic envelope by amphibolite to green-schist facies D3 shear zone cross-cutting S2 fabrics. All domains have been reworked by E-W upright folds associated with axial-planar greenschist facies cleavage, reflecting the final mid-Permian to Triassic D4 shortening. Lithological, geochemical, and U-Pb zircon analyses of metasediments of all domains indicate that they are formed by Ordovician mature quartzite derived from Precambrian basement intruded by Cambrian-Ordovician continental arc and Silurian immature graywacke which originated through erosion of an oceanic arc. Altogether, the whole sequence represents a fore-arc basin in front of a migrating arc affected by thickening and late Devonian extension. The Southern domain is interpreted as an early Permian core complex amplified by mid-Permian to Triassic compression. The apparent “terrane” architecture of the Mongol Altai Zone originated due to Devonian and Permian heterogeneous reworking of a giant Ordovician to Silurian fore-arc basin.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
<a href="/en/project/GX19-27682X" target="_blank" >GX19-27682X: Principal mechanisms of peripheral continental growth during supercontinent cycle</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Tectonics
ISSN
0278-7407
e-ISSN
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Volume of the periodical
41
Issue of the periodical within the volume
8 : e2022TC007498
Country of publishing house
US - UNITED STATES
Number of pages
36
Pages from-to
nestránkováno
UT code for WoS article
000846738000001
EID of the result in the Scopus database
2-s2.0-85136853990